Shipping fragile items like formula cans, supplements, or glass jars? These inflatable air column bags are a lifesaver! Each pack includes 20 reusable bags that you fill with air (using the included hand pump) to create custom cushioning around your item. Designed to fit cans up to 12.5cm in diameter and 20cm tall, they're perfect for protecting奶粉 tins during moves, mailings, or storage. Each bag has 10 independent air columns—if one pops, the others stay inflated. Made from tough, eco-friendly PA+PE material, they're transparent so contents are visible, and they provide excellent shock absorption. Just inflate, slide your can inside, and seal. Much cleaner than packing peanuts and way more protective than bubble wrap. Keep your valuables safe in transit with this smart, reusable packaging solution!